4As an environmental criminologist, Patrick Bowers uses 21st-century geospatial technology to analyze the time and space in which a crime takes place. Using an array of factors, Bowers can pinpoint clues to solve the toughest of cases. Bowers's skills have made him one of the FBI's top agents?until now.

Called to the mountains of North Carolina to consult on a gruesome murder, Bowers finds himself in a deadly duel with a serial killer who seems to transcend Patrick's analytical powers. Forced to track the killer's horrific murders one by one, Bowers finds his techniques and instincts are put to the ultimate test?